Home / 20,262.60-30,397.26-7,111.56

Finding the Fourth Proportional to 20,262.60, 30,397.26 and 7,111.56

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Solution

The fourth proportional to 20,262.60, 30,397.26 and 7,111.56 is: 10,668.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,262.60 : 30,397.26 = 7,111.56 : x
  2. Step 2: Convert to fraction form
    20,262.60/30,397.26 = 7,111.56/x
  3. Step 3: Cross multiply
    20,262.60x = 30,397.26 × 7,111.56
  4. Step 4: Simplify right side
    20,262.60x = 216,171,938.33
  5. Step 5: Solve for x
    x = 216,171,938.33/20,262.60
  6. Step 6: Final answer
    x = 10,668.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.